sysctl (command)

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sysctl configure kernel parameters at runtime.



sysctl -w vm.nr_hugepages = 204832
sysctl -w vm.max_map_count=262144


KVM VNC remote viewer

iptables -t nat -A PREROUTING -i eno1 -p tcp --dport 5900 -j DNAT --to 127.0.0.1:5900
sysctl -w net.ipv4.ip_forward=1
sysctl -p /etc/sysctl.conf




  • sysctl -q net.ipv4.conf.all.src_valid_mark=1


  • sysctl -w vm.nr_hugepages = 204832

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